864392002 has 16 divisors (see below), whose sum is σ = 1332526392. Its totient is φ = 420232320.

The previous prime is 864391987. The next prime is 864392033. The reversal of 864392002 is 200293468.

It can be written as a sum of positive squares in 4 ways, for example, as 860307561 + 4084441 = 29331^2 + 2021^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144552 + ... + 150412.

Almost surely, 2^864392002 is an apocalyptic number.

864392002 is a deficient number, since it is larger than the sum of its proper divisors (468134390).

864392002 is a wasteful number, since it uses less digits than its factorization.

864392002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7893.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 864392002 is about 29400.5442466632. The cubic root of 864392002 is about 952.5846520843.

The spelling of 864392002 in words is "eight hundred sixty-four million, three hundred ninety-two thousand, two".